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More Power! The Coyote powered S550 GT Mustangs came with an awesome 435 Horsepower and 400 lb/ft of Torque from the factory, but after installing a Hellion Twin Turbo Tuner Kit, you'll be planting a ground pounding 500 to 1200 Horsepower to the pavement (depending on custom tuning and fuel upgrades).

55mm or 62mm Turbos. This Hellion Twin Turbo Tuner Kit features your choice of two Precision 55mm or 62mm Turbos. The 55mm "Quick Spool" Turbos are perfect for use with stock engines and provide virtually no turbo lag - ideal for street driven daily drivers. The 62mm turbo option will have more lag than the 55m turbos, but can support well over 1200 rwhp on a properly built engine.

No Cutting Required. Designed to install under the stock hood with no cutting required, this Hellion Turbo system retains all the factory accessories including air conditioning for complete driver comfort.

Please Note. Hellion Turbo Systems are built to order for our customers and accordingly, we require you to submit additional information about your vehicle using this form. Because of this there can be a 5 to 7 day lead time on orders once your information is received.

Once the Customer Information Form is filled out, please email it to support@americanmuscle.com with your Order Number in the Subject line, so the order can be processed.

Most Helpful Reviews

5/5

Insane power and torque!

Recently got the hellion twin turbo kit with the 55mm turbos installed into my car and it is absolutely amazing. I got the 127 lb injectors and out 20lbs of boost and I'm sitting at 1028rwhp and 915tq ...
if you want power this is what you need and what is necessary for you mustang

Twin Turbo FTW!

First off I know there are more than 5 turbo kits currently for the S550. I could've chose any of those but narrowed by kit choice down by bang for the buck, proven track record, and overall wow factor ...
when I open the hood. For the most part this kit went together almost flawlessly. As with any aftermarket product of this magnitude, some adjustment and some personal changes were made to suite my meticulousness. Really the only complaint I would have is the lack of detail and thoroughness in the instructions. I do all of my own work, so if you plan on the install yourself, I would recommend having some mechanical aptitude. You can't go wrong with the quality of this kit.

I have a 09 gt that I am going to do a coyote swap and the hellion twin turbo tuner kit, I want to be in the 900-1100HP range. Which coyote motor would you suggest for the swap, I was looking at the lower compression aluminator. Would this be the best engine to get me headed in the right direction? Or should I go with one of the other engines? I know im going to need to change injectors and fuel system, I have been over thinking the engine issue though... Thanks in advance.

GaryG

The best engine to start with to make that kind of power would be the aluminator low compression engine, this will allow the ability to run boost as well as having built internals to handle higher amounts of horsepower. If going over 1000HP I would consider taking a look at the internals and possibly revising to use even stronger materials.

Recently got the hellion twin turbo kit with the 55mm turbos installed into my car and it is absolutely amazing. I got the 127 lb injectors and out 20lbs of boost and I'm sitting at 1028rwhp and 915tq if you want power this is what you need and what is necessary for you mustang

First off I know there are more than 5 turbo kits currently for the S550. I could've chose any of those but narrowed by kit choice down by bang for the buck, proven track record, and overall wow factor when I open the hood. For the most part this kit went together almost flawlessly. As with any aftermarket product of this magnitude, some adjustment and some personal changes were made to suite my meticulousness. Really the only complaint I would have is the lack of detail and thoroughness in the instructions. I do all of my own work, so if you plan on the install yourself, I would recommend having some mechanical aptitude. You can't go wrong with the quality of this kit.

Hellion Twin Turbo - Tuner Kit (15-17 GT)

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Growing up my dad had always talked about his Grand National fox body and how he should have never got rid of that car! This had sparked my interest in mustangs. When my older brother got his license he bought a 2000 GT 5 speed. When I first saw that and road in that is when I knew I loved Mustangs...